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Stainless Steel Coupling Union Nipple

Stainless steel coupling, stainless steel union, and stainless steel nipple all play the role in connection.

Stainless Steel Coupling Union Nipple

Stainless steel coupling, stainless steel union, and stainless steel nipple all play the role in connection. Jiangsu Sheye Metal is a leading manufacturer specialized in producing stainless steel coupling, stainless union, and stainless nipple. With Strong technical force, advanced equipment and skilled craftsmanship, Sheye Metal can supply various types of stainless steel pipe fittings and good quality is guaranteed. Various steel grades stainless steel coupling, union, and nipples are produced with complete specifications and supreme quality. Sheye Metal has fine equipment and complete quality management, establishes modern quality management system, introduces internationally advanced technology and adopts international advanced production technique. Stainless steel caps are widely applied to industries as petroleum, chemical industry, machinery, electric power, chemical fiber, papermaking, printing and dyeing, food and pneumatic parts etc. The company is provided with complete inspection equipment and adopts technical standards for various types of stainless steel coupling, union, and nipples.

Stainless Steel Coupling
A stainless steel coupling connects two stainless steel pipes. If their sizes differ, the stainless steel pipe fitting is know as a reducing coupling, reducer or adapter. There are two types of couplings: slip and regular. Stainless steel couplings are highly demanded in the stainless pipe fitting market. Stainless steel couplings always help to extend or terminate pipe runs. SS couplings extend a run by jointing two lengths of pipe. Stainless steel coupling, also known as repair couplings, is without stops or ridges and they can be fixed anywhere along the pipe length for preventing leak of any kind.

Stainless Steel Union
A stainless steel union, similar to stainless steel coupling, allows the convenient disconnection of pipes for maintenance or fixture replacement. Although a SS coupling requires solvent welded, soldering or rotation, a stainless union allows easy connection and disconnection. It consists of three parts: a nut, a female end and a male end. When female and male ends are joined, the nut seals the joint. Stainless steel unions are a type of flange connector.

Stainless Steel Nipple
Stainless steel nipple is a pipe fitting, consisting of a short piece of pipe, usually provided with a male pipe thread at each end, for connecting two other fittings. The length of stainless steel nipple is usually specified by the overall length with threads. It may have a hexagonal section in the center for wrench to grasp, or it may simply be made from a short piece of pipe. When the ends are of two different sizes it is called a reducer or unequal nipple.

Stainless Steel Coupling, Union

Size

1/8” to 4” (DN6– DN100)

Pressure

2000LBS, 3000LBS, 6000LBS, 9000LBS

Standard

ANSI B16.9/B16.28 and MSS SP-43/SP-75

Ends

Butt Welded, Threaded

Thread Types

NU, EU, STC, LTC, BTC

Surface

Shot Blasted, Rolling Sand, Polishing


Stainless Steel Nipple

Size

1/8” to 12” (DN6– DN200)

Type

TBE, TOE POE, PBE


Stainless Steel Coupling


   
Nominal Diameter


   
The Length of Coupling and Cap

Outside Diameter

End Wall Thickness

Length of Thread

E

F

D

C min

 

DN

NPS

3000LB

6000LB

3000LB

6000LB

3000LB

6000LB

3000LB

6000LB

B

L2

 

 

Sch160

XXS

Sch160

XXS

Sch160

XXS

Sch160

XXS

 

 

6

1/8

32

32

19

-

16

22

5.0

-

6.5

6.5

8

1/4

35

35

25

27

19

25

5.0

6.5

8.0

10.0

10

3/8

38

38

25

27

22

32

5.0

6.5

9.0

10.5

15

1/2

48

48

32

33

29

38

6.5

8.0

11.0

13.5

20

3/4

51

51

37

38

35

44

6.5

8.0

12.5

14.0

25

1

60

60

41

43

44

57

9.5

11.0

14.5

17.5

32

1.1/4

67

67

44

46

57

64

9.5

11.0

17.0

18.0

40

1.1/2

76

76

44

48

64

76

11.0

12.5

18.0

18.5

50

2

86

86

48

51

76

92

12.5

16.0

19.0

19.0

65

2.1/2

92

92

60

64

92

108

16.0

19.0

23.5

29.0

80

3

108

108

65

68

108

127

19.0

22.0

26.0

30.5

100

4

121

121

68

75

140

159

22.0

28.5

27.5

33.0

Note: The above size comply with ANSI B16.11, BSP3799, GB/T14626

Stainless Steel Union

Nominal Diameter

Outside Diameter

Wall Thickness

Socket Bore

Water way Bore

Depth of Socket

Length Assem

 

 

 

 

 

Nominal

D min

C min

d1

d2

J min

L

DN

NPS

Socket

Threaded

Socket

Threaded

Socket

Socket & Threaded

Socket

Socket & Threaded

6

1/8

21.8

14.7

3.2

2.5

10.65

6.43

10

41.4

8

1/4

21.8

19

3.3

3.1

14.1

9.45

10

41.4

10

3/8

25.9

22.9

3.5

3.2

17.55

13.51

10

46

15

1/2

31.2

27.7

4.1

3.8

21.7

17.07

10

49

20

3/4

37.1

33.5

4.3

4

27.05

21.39

13

56.9

25

1

45.5

41.4

5

4.6

33.8

27.74

13

62

32

1-1/4

54.9

50.5

5.3

4.9

42.55

35.36

13

71.1

40

1-1/2

61.5

57.2

5.6

5.1

48.65

41.2

13

76.5

50

2

75.2

70.1

6.1

5.6

61.1

52.12

16

86.1

65

2-1/2

91.7

85.3

7.7

7.1

73.8

64.31

16

102.4

80

3

109.2

102.4

8.4

7.7

89.8

77.27

16

109

Note: The above size comply with MSS SP-83, BS3799.

Stainless Steel Nipple (Inch Pipe)

Nominal Size

Outside Diameter

Sch40/STD
   
Sch80/XS

Sch160
   
XXS

L(mm)

DN

NPS

 

 

 

 

8

1/4

13.5

Ο

 

100
     150
     200

10

3/8

17.2

Ο

 

 

15

1/2

21.3

Ο

Ο

 

20

3/4

26.7

Ο

Ο

 

25

1

33.4

Ο

Ο

 

32

11/4

42.2

Ο

Ο

 

40

11/2

48.3

Ο

Ο

 

50

2

60.3

Ο

Ο


Main Grades of Stainless Steel Coupling Union Nipple 

Austenitic/Super Austenitic Stainless Steel Caps

304,  304H,  304L,  304LN,  321,  321H,  316,  316L,  316LN,  316Ti,  317L,  310S,  310H,  314,  347H,  904L,  S31254,  N08367,  N08926,  S32654,  S31277

Ferrite/Super Ferrite Stainless Steel Caps

405,  430,  439,  444,  TP446-1/TP446-2,  S44660,  S44735,  S44736

Duplex/Super Duplex Stainless Steel Caps

S31500,  S31803,  S32205,  S32304,  S32520, S32550,  S32750,  S32760

Martensite/Super Stainless Steel Caps 

410S,  410,  420,  420J2,  431,  17-4PH,  13Cr110,  17Cr110/125

Nickel Alloy Caps

N04400,  N05500,  N06600,  N06601,  N06025,  N06617,  N06625,  N06690,  N08810,  N10276,  N06022,  N10665,  N10675,  N08020,  N08028,  N08031,  N06985,  N06030,  N06035,  N07750

Packing Information of Stainless Steel Coupling Union Nipple
Stainless steel coupling union nipple from Sheye Metal are packed and labeled according to the regulations and customer's requests. Great care is taken to avoid any damage which might be caused during storage or international transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.

A. Sheye Metal Export Standard Seaworthy Packing for Stainless Steel Coupling Union Nipple.
Wooden Pallet, Plywood Case, Wooden Boxes.
B. Customization (Stainless Steel Coupling Union Nipple)

If you are going to buy high quality stainless steel coupling union nipple in stock, please feel free to contact Sheye Metal, which is one of the well-known manufacturers and suppliers of good stainless steel coupling union nipple.

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